CVE-2026-67966 Auth bypass in n/a
Unauthenticated attackers can enable Telnet on Tenda W20E routers to gain root shell access, requiring immediate mitigation.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-67966?
CVE-2026-67966 is a critical authentication bypass vulnerability in n/a, published on 17 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Tenda W20E V16.01.0.6(2782) /goform/telnet endpoint allows unauthenticated remote attackers to activate the Telnet daemon and obtain root shell access.
Weakness: CWE-306
Which versions are affected by CVE-2026-67966?
How do I fix CVE-2026-67966?
No fix has been published for CVE-2026-67966 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2026-67966 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-67966 exists.
Sources
Also known as GHSA-48vf-q85h-3hw9.